title: [Two mammographic periods compared].
abstract: The authors report the results obtained in two different series of cases examined by means of mammography in 1968/74 and in 1987/89. All patients had histologically proven breast cancer. The first series of cases included 183 patients who were examined with a mammographic unit with fixed anode, 0.6 x 0.6 mm focal spot, and 25-40 cm FFD. The second series included 152 patients who were examined with a last-generation mammographic unit with turning anode, 0.3 x 0.3 mm focal spot, 50-65 cm FFD, and radiographic magnification. Lesion staging in the first group went as follows: 10% of patients were T1, and 90% were in more advanced stages; in the second series, 42% were T1 and 52% were in more advanced stages. Mammographic accuracy was 83% in the first series and 84.8% in the second series. The main mammographic features of the lesions and their incidence were analyzed. In 11 patients examined with a last-generation unit, breast cancer was diagnosed for the presence of indirect signs which had not been demonstrated with the older unit. In conclusion, last-generation mammographic units allow an earlier diagnosis to be made, and most signs of breast cancer to be promptly demonstrated.
authors.affiliation: Istituto di Semeiologia, Diagnostica e Terapia Strumentale, Università, Ancona.
authors.forename: G M
authors.initials: GM
authors.lastname: Giuseppetti
authors.forename: S
authors.initials: S
authors.lastname: Baldassarre
authors.forename: P
authors.initials: P
authors.lastname: Ercolani
authors.forename: A
authors.initials: A
authors.lastname: Segoni
authors.forename: F
authors.initials: F
authors.lastname: Amici
mesh_terms: D001943:Breast Neoplasms / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008327:Mammography / Q000295:instrumentation*; D008875:Middle Aged; D011237:Predictive Value of Tests; D013997:Time Factors
vernacular_title: Due epoche mammografiche a confronto.